Below are some links that will direct  you to more information about recommended additional testing during the home buying process.  It is recommended that you review these sites and act accordingly.

Radon:
http://www.health.state.ri.us/environment/occupational/radon/testing.php

http://www.epa.gov/radon/zonemap/rhodeisland.htm

Coughlin Radon Services, Inc. (9 Taylor Road, Johnston, RI. (401) 640-1534

Priority Environmental Services Inc., (43 Gaglione Court, Cranston, RI. (401) 463-7773). http://www.priority-environmental.com/

Septic Systems:
http://www.dem.ri.gov/pubs/regs/regs/water/isdsbook.pdf  
(See page 67.)         

Private Wells
http://www.nachi.org/privatewaterwells.htm

Well Water Testing
http://www.health.ri.gov/environment/dwq/privatewell.php

Lead
http://www.health.ri.gov/lead/environmental/realestate.php

Mold
http://www.health.ri.gov/environment/risk/mold_indoor.php

Pool Safety
http://www.nachi.org/poolsafety.htm

Environmental Site Assessments
http://www.erpickett.com/envir.htm

Additional useful information:

EPA
http://www.epa.gov/ - which includes information on asbestos, clean-up, Lead, Mold, etc.

Consumer Safety & Recalls applicable to items in the home
http://www.cpsc.gov/

These elements are sometimes found during home inspections and will be noted in your home inspection report if found:

Polybutylene plumbing in homes
http://www.polybutylene.com/poly.html

Federal Pacific Electric Panels
http://www.inspect-ny.com/fpe/fpe.html

Protecting Your Investment

Maintaining a "healthy" septic System: http://www.nachi.org/septicsystems.htm

Saving Money (Conserving Energy): http://www.nachi.org/energyconservation.htm

The Air You are Breathing:
http://www.nachi.org/indoorair.htm

Is Your Home Child-proof?:
http://www.nachi.org/childsafety.htm

Electrical Safety:
http://www.nachi.org/electric.htm

Why Do I Have Mold?:
http://www.nachi.org/mold.htm


Home Inspection Links

Rhode Island Home Inspection

American Home Inspector Directory - The Home Inspection Authority
National directory of home inspectors. Research home inspections and select your home inspection company to use from our detailed listing of home inspectors.

Home Inspection Glossary
the NACHI Glossary
ADDITIONAL USEFUL LINKS
The Duct Depot, manufacturers of custom made ductwork, fittings and copper shower pans.
http://www.theductdepot.com
S & B Services LLC
Inspected Once, Inspected Right!